package leetcode;

import java.util.Stack;

/**
 * @Description
 * @Author away
 * @Version V1.0.0
 * @Since 1.0
 * @Date 21.6.22
 */

public class T38 {
    public String[] permutation(String s) {
        Stack<Character> stack = new Stack<>();
        int i = 0;
        while (i < s.length()) {
            stack.add(s.charAt(i));

        }
        return null;
    }


}
